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Finding the Fourth Proportional to 12,762.02, 19,141.51 and 3,402.74

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Solution

The fourth proportional to 12,762.02, 19,141.51 and 3,402.74 is: 5,103.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,762.02 : 19,141.51 = 3,402.74 : x
  2. Step 2: Convert to fraction form
    12,762.02/19,141.51 = 3,402.74/x
  3. Step 3: Cross multiply
    12,762.02x = 19,141.51 × 3,402.74
  4. Step 4: Simplify right side
    12,762.02x = 65,133,581.74
  5. Step 5: Solve for x
    x = 65,133,581.74/12,762.02
  6. Step 6: Final answer
    x = 5,103.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.